Lock



July 6 1926. 1,591,191

' E. B. STONE LOCK Filed April 17. 1923 Patented :Zl uly 6,

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. App1ication:fi1edApril-17, 923i seriarnesesaeis; 1

My invention relates more 'especially to that class of locks known asshackle locks, and an object ofmy invention, among others, is to providea lock of this class that shall be extremely strong to withstand forces"that may be applied to ,disrupture it. 4

One form of lock embodying my invention and in theconstruction and'useof which "the objects herein set out, as well as others,

may be attained, is illustrated in the accompanying drawings, inWhichlock. 7 I

Figure 2 is an edge view of the same. s Figure 3 is an endview withtheshackle broken ofi.

Figure 4 is a view similar to Fig. 3, but

7 a showing one manner of use of the lock to embody. my invention. 1 r.

V 'In the use of locks of this type, it frequently occurs that, owing tocertain shapes of the engaged parts, one branch of the shackle will beso insecurely held as to per- .mit it to be pried loose withcomparatively little force, this defect taking place close to the lockcase. r r

- In order to overcome this objection I ha-ve provided means forreinforcing the shackle at this point, such means being shown inf theaccompanying drawings, in which the tionof the opening for an arm of theshackle 8. This lug atone edge constitutes a hub- 7 that is preferablysubstantially round in cross section to conform to the'shape of the armof the shackle 8,andfrom this point to-- ward the center of the. lockcase the lug is made with a nose .11, it, however, being maintained ofsuificient thickness to resist forces that may be appliedto theshackleto disrupt the parts. I prefer to locate this lugappurtenant to one ofthe shackle armsonly, as in most-cases this will be found 'sufiicient,but

it will be understood that in cases where cir- Figure 1 1s a; frontview' of my improved the shackle being notched tended from thecaseappurtenant to both of the shackle arms.- v n 7 In one instanceofuse of thislock, a lock plate 12 is employed, as shown in Fig. 4, thisend, the plate being employed to secure a locked member and thefllockbeing employed. to secure the plate. are, however, soclose together asto make it provided to engage within the notch 14 ap Said hole and notchf impracticable toflocate the arms of" theshackle so close together,owing to a weakness in the lock'structurethat wouldresult from such aconstruction. Therefore, in order to avoid this difficulty, the nose 11is cumstances may requirethe may be e0 2 plate'havin'g a hole 13 and anotch 14 in one I purtenant to one shackle arm, the other 7 shackle armpassing through the hole 13.

This construction provides means whereby theworkingfmechanism of thelock need not be weakened, and at the same time the locked member willbe held in a strong and eflicient manner. i i

I claim' j t 1. A look case having a lug extending outwardly from oneend thereof, said-lug com prising a hub and an elongation extending fromsaid hub alon the end of the case toward the oppositeec l having anopening extending into the case throu h said hub to. receive one arm: ofashackle, the end of said elongation being spaced from the other shacklearm for locke engagement with a member'loc-ated between the end of-saidelongation and the other ge thereof, said 111 also f 90 7 shackle arm,there being another shackle 7 receiving opening in the case, and ashackle extending intov said openings to be held by mechanism within thecase. V

2. A look comprising a-case having a lug located on-one end thereof,said lug comprising a hub and" an elongation. extending from said hubalon the end of the case toward'thecenter and opposite edgejthereof',said lug havin ;an .opening into said case and throughsald hub toreceive one arm of a shackle,"the end of said elongation beingspaced-from'the other shackle armfor locked shackle arm, a projectionextending at an I angle from the body of the case at the opposite, endthereof from said lug, and'a shackle projecting through said openingsinto the case and on opposite sides of said angular engagement with amember located between the end of the elongation and said other V pr nprojection, said; shackle being held by mechanism; located Within saidicas'e.

3. A lock case having a lug extending ontward y. from one end thereof,said 151 69m:

from said hub along the end ofthecase to ward the opposite edgethereofto locatethe. holding means of the lock nearer together than are theshackle arms, l ng also liay ing an opening extending into the case mband an. elQngefi m ex en ing le ighsai l hub to r ceite 9n? rmshacklethe end of said; ee g, positioned for locked engagement wlth amember located between the end of the elongation and held by mechanismWithin the case.

ELMER B. STONE.

